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Equatorwards expansion of unperturbed, high-latitude fast solar wind

Research output: Contribution to journalJournal article

Published

Journal publication date07/2013
JournalSolar Physics
Journal number1-2
Volume285
Number of pages14
Pages97-110
Early online date17/07/12
Original languageEnglish

Abstract

We use dual-site radio observations of interplanetary scintillation (IPS) with ex- tremely long baselines (ELB) to examine meridional flow characteristics of the ambient fast solar wind at plane-of-sky heliocentric distances of 24–85 solar radii (R⊙). Our results demonstrate an equatorwards deviation of 3 – 4◦ in the bulk fast solar wind flow direction over both northern and southern solar hemispheres during different times in the declining phase of Solar Cycle 23.